Combination desk unit



FIG. 1 is a top plan view of a combination desk unit showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a bottom plan view;

FIG. 4 is a rear elevational view;

FIG. 5 is a left side elevational view, the right side being a mirror image thereof; and,

FIG. 6 is a top, left front perspective view thereof, the writing instrument and calendar retaining rods being depicted by means of broken lines for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for a combination desk unit, as shown and described. 